Louis baylor pendleton



N0. 5l8,532. Patented lan. 3|, I899. L. B. 'PENDLETUN.

MOLD.

(Application filed Mar. 31, 1898.)

(No Model.)

III

WITNESSES A TTOHNEY Nrrno STATES PATENT OFFICE.

I LOUIS BAYLOR PENDLETON, OF NASHVILLE, TENNESSEE, ASSIGNOR TO THEMERGENTHALER LIN OTYPE COMPANY, OF NEW YORK, N. Y.

MOLD.

SPECIFICATION forming part of Letters Patent No. 618,582, dated January31, 1899.

Ap li ati fil d March 31, 1898- Serial No. 675,887. (No model.)

To all whom it may concern.-

Be it known that I, LoUIs BAYLOR PENDLE- TON, of Nashville, in thecounty of Davidson and State of Tennessee, have invented certain new anduseful Improvements in Linotype-Machines, of which the following is adescription, reference being had to the accompanying drawings, forming apart of this specification.

The object of my invention is to provide for linotype-machines a moldwhich may be speedily and accurately adjusted to produce linotypesdiffering in length or'in thickness, or in both respects, as may bedemanded. It is intended more particularly for use in connection withthe Mergenthaler linotype-machines such as are now in general use andwhich are described in detail in Letters Patent of the United Statesissued on the 16th day of September, 1890, Nos. 436,531 and 436,532. Inthis machine a vertical revolving wheel carries a mold havinga slottherethrough from front to back, the front face of this mold beingtemporarily closed bya composed line of letter-matrices, while the backis closed by the mouth of the melting-pot,

through which molten metal is ejected into.

the mold to form the linotype or slug, on one edge of which the typecharacters are formed in relief by the matrices. The length of the slugproduced corresponds to the width of a column or page of print, and itis therefore necessary to frequently change the length of the mold-slotin order to produce slugs for columns or pages differing in width.

The matrices used in the machine are frequently changed in order toproduce typefaces of different sizes, as agate, nonpareil, minion, &c.,and this change necessitates a corresponding change in the width of themold-slot in order to produce a slug or linotype of thickness suitableto the size of the type-faces required.

Heretofore molds have been constructed of a body portion, a cap portion,and two intermediate plates or liners, serving to separate the cap andbody and to determine thelength of the slot between them.

In practice it has been necessary to remove the mold from the disk andsubstitute liners of different lengths in order to vary the length ofthe slot and slug. When the thickness of the slug was to be changed, ithas been customary to remove the mold and substitute another havingliners of different thickness.

Now my invention has in view the speedy adjustment of the mold in bothdirections, so that variations may be made in the length or thickness ofthe slug at will without removing the mold from the machine and withoutdisturbing the adjustment of the body or lower portion of the mold, thispermanent attachment of the body to the mold-wheel being of greatadvantage for reasons hereinafter explained. To this end I construct mymold of a body portion to be fixed rigidly in the disk or other support,a cap portion, intermediate removable liners, and an external pressuredevice acting on the cap and within the wheel or other support for thepurpose of forcing the cap downward in order to pinch and hold theliners, the construction and arrangement being such that although thecap is rigidly held it maybe instantly released to permit the insertionand removal of liners differing in length or thickness, or both. Assecondary features I provide a spring or springs to separate the twoparts of 'the mold when released and guides to prevent the cap fromfalling out of position.

In the accompanying drawings, Figure 1 represents a front view of myimproved mold in position in the wheel or disk of a linotypemachine.Fig. 2 is a vertical cross-section on the line 2 2 of the precedingfigure. Fig. 3 is a front elevation of the mold and the surroundingportion of the wheel on a larger scale, portions being broken away atthe top and bottom to expose the internal construction. Fig. 4 is across-section on the line 4 4 of Fig. 3. Fig. 5 is a horizontal sectionon the correspondingly-numbered line of Fig. 3, looking in a downwarddirection. Fig. 6 is a perspective View of one of the movable liners.

A represents the vertical mold wheel or disk provided with gear-teeth onits outer edge and arranged to revolve on a horizontal axis, as usual.It is provided near the periphery with a slot or opening to receive themold B, which extends therethrough from front to rear. As shown in thedrawings, this mold consists of the base or body portion D, the

overlying cap D, and the intermediate liners F and F at opposite ends.The body portion D has a flange overhanging the face of the wheel, towhich it is firmly and permanently secured by screws E. Under ordinaryconditions the attachment of the body to the disk is a permanent one,the parts being accurately fitted and tightly held together, so thatthere can be no change in their relations. This is of great importance,because in the Mergenthaler machine the slugs ejected from the mold arecarried between trimmingknives, one of which must aline exactly with thesurface of the mold-body and the surface of the slug coming therefrom.In practice it is found that where molds are interchanged or substitutedit is exceedingly difficult to secure in a reasonable time that exactadjustment of the body in relation to the wheel and knives which isnecessary. Hence the importance of my construction, which permits thenecessary adjustment to be effected without disturbing the mold-body,which serves to insure the correct position of the other mold. The capportion D is flattened on its upper or outer surface and is provided atits two ends with depending arms or guides D which slide closely ingrooves in the ends of the body. These arms serve the double purpose ofkeeping the working faces of the cap in line with the faces of the bodyportion and also to prevent the cap from falling out of the disk whenreleased. The liners or fillingpieces F and F are inserted transverselyand are provided each with transverse ribs F which enter correspondinggrooves in the cap and body, so that when the liners are pushed home totheir places between the cap and body they are prevented by the ribsfrom shifting endwise, the distance between their inner ends being thusaccurately determined. These ribbed liners are now used in thecommercial linotype-machines and are not in themselves claimed as of myinvention. The opening in the mold-wheel above the cap is of such sizethat the cap may be raised sufficiently to permit the introduction ofliners having a thickness equal to that of the heaviest slugs to becast.

hen it is required to change the length only of the slug, the liner F isremoved and replaced by another of diiferent length. When the thicknessof the slug is to be changed, both liners F and F are removed andreplaced by others of suitable thickness and length.

For the purpose of holding the liners in place and of binding the capfirmly upon the liners, so that the mold-slot will be of the precisewidth required from one end to the other, it is necessary to employ afirm locking mechanism. I prefer to employ and I have shown in thedrawings two wedges G and G, seated on the cap and hearing at theirupper edges under corresponding surfaces in the mold-wheel. These twowedges are connected bya right and left hand screw H, which admits oftheir being quickly operated and of their being forced and held outwardso stronglythat they will hold the cap down with strong pressure uponthe liners.

To the under side of the mold-body I attach springs I, the outer ends ofwhich engage the guide-arms D urging the same upward, so that when thecap is relieved from pressure it will be automatically raised andsupported and the liners released. This admits of the liners beingquickly and conveniently changed, and also causes the pressure devicesto be held so that they cannot fall out of place. In order to preventthe wedges from falling out of place when released, Iprovide them on theunder side with studs G moving in grooves in the top of the cap. It isto be understood, however, that these guides may be in any appropriateform,that the opening-springs may be modified in form and arrangement oromitted entirely, and that in place of the wedges any equivalentpressure device acting between the cap and the overlying portion of themold-wheel may be employed.

I believe myself to be the first to combine with a wheel or othersupport the perinanently-attached mold-body combined with a movable cap,removable liners, and an overlying pressure device acting within thecarrier. The employment of a pressure device between the mold-cap andthe wheel of the opening in which the mold is seated is advantageous inthat the pressure applied aids in holding the mold as a whole rigidly inposition in the disk, so that it cannot spring or be driven out ofposition by the action of the ejector or the other moving parts of themachine which apply strain to the mold.

It will be manifest to the skilled mechanic that the details may bevariously modified without changing essentially the mode of action orpassing beyond the limits of my invention.

It is to be noted that the cap and body of my mold are without the usualvertical holes for receiving binding-screws. In other words, the cap andbody are imperforate. The cap is formed with a heavy stiffening-rib onits top, adapted to extend through the moldopening, so that pressure maybe applied thereto in suitable position to hold the cap firmly in place.The construction of the cap without holes and with the heavy rib isadvantageous in that it is the better adapted to resist the strain andtension which arise from the unequal and irregular heating and coolingto which it is subjected when in use.

Having thus described my invention, what I claim is 1. In alinotype-machine, the combination of a mold Wheel or support, having anopening therethrough, a mold-body, rigidly secured in said opening, anoverlying mold-cap, intermediate removable liners, and a pressure deviceacting between and against the cap and the interior of the wheel,whereby said pressure device is caused to hold the parts of I the moldin operative relation to each other and also to aid in keeping the moldas a whole in position.

2. In combination with the Wheel or carrier, having an openingtherethrough, the moldbody secured thereto, the rising-and-fallingmold-cap, the intermediate liners, and a wedge mechanism seated betweenthe cap and the wheel, substantially as described and shown.

mold-bod y secured therein, the mold-cap connected to the body by endguides, springs tending to separate the cap and body, intermediateremovable liners, and a pressure device acting on the cap, whereby theready release of the cap and the substitution of liners is permitted andthe cap prevented from falling out of position.

7. In a linotype-machine, the combination of a mold wheel or carrier, amold-body rigidly secured thereto, a movable mold-cap, removable linersseated between the cap and body, and means distinct from the mold actingexternally on the cap to confine the same in place.

8. In a linotype-mold, the combination of a mold-body having animperforate upper surface, an imperforate cap lying thereover,intermediate removable liners, and means external t0 the mold forconfining the cap and body against the liners.

LOUIS BAYLOR PENDLETON.

\Vitnesses:

J M. RAGAN, WM. Vnss.

